STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
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Gene Fusion
Cooccurrence
Coexpression
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[Homology]
Score
ideRIron-dependent repressor and activator IdeR; Metal-dependent DNA-binding protein that controls transcription of many genes involved in iron metabolism. Acts as a repressor of siderophore biosynthesis and as a positive modulator of iron storage. Also regulates expression of transporters, proteins involved in siderophore synthesis, iron storage and transcriptional regulators. (230 aa)    
Predicted Functional Partners:
sigB
RNA polymerase sigma factor SigB; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. A non-essential principal sigma factor that responds to cell envelope stress and hypoxia. Controls a regulon of about 40 genes, with another 100 genes expression being altered during SDS stress and about 50 gene being altered during diamide (oxidative) stress.
  
  
 0.943
zur
Probable zinc uptake regulation protein Zur; Global transcriptional regulator involved in zinc homeostasis. Represses the transcription of at least 32 genes, including genes involved in zinc homeostasis, by binding to promoter sequences that contain a conserved 26 bp palindrome, in the presence of zinc; Belongs to the Fur family.
  
  
 0.877
bfrA
Probable bacterioferritin BfrA; Iron-storage protein, whose ferroxidase center binds Fe(2+) ions, oxidizes them by dioxygen to Fe(3+), and participates in the subsequent Fe(3+) oxide mineral core formation within the central cavity of the protein complex.
   
  
 0.861
bfrB
Bacterioferritin BfrB; Iron-storage protein that displays ferroxidase activity, catalyzing the oxidation of Fe(2+) ions into Fe(3+) ions, that can then be deposited as a ferric-oxide mineral core within the central cavity of the protein complex; Belongs to the ferritin family. Prokaryotic subfamily.
  
  
 0.775
pepD
Rv0983, (MTV044.11), len: 464 aa. Probable pepD (alternate gene name: mtb32b), secreted or membrane serine protease (see citation below), equivalent (but longer 18 aa in N-terminus) to AL035500|MLCL373_17|T45448 probable serine proteinase from Mycobacterium leprae (452 aa), FASTA score: (74.2% identity in 466 aa overlap); and highly similar to others from Mycobacterium leprae. Also highly similar (except in N-terminus) to other proteases e.g. CAC01350.1|AL390975 putative protease from Streptomyces coelicolor (542 aa); NP_440705.1|NC_000911|HtrA serine protease from Synechocystis sp. (4 [...]
  
    0.761
35kd_ag
Rv2744c, (MTV002.09c), len: 270 aa. 35kd_ag,conserved ala-rich protein 35-kd antigen (see O'Connor et al., 1990). N-terminal part is equivalent to Q49840|MLCB33.06c|B2235_C2_187 hypothetical protein from Mycobacterium leprae (167 aa), FASTA scores: opt: 789, E(): 3.4e-35, (85.05% identity in 147 aa overlap); and C-terminal part equivalent to Q49845|MLCB33.05c|B2235_C3_214 hypothetical protein from Mycobacterium leprae (114 aa), FASTA scores: opt: 465, E(): 3.6e-18, (65.8% identity in 114 aa overlap); note that these two proteins from Mycobacterium leprae are adjacent. Shows some simila [...]
   
  
 0.740
devR
Two component transcriptional regulatory protein DevR (probably LuxR/UhpA-family); Member of the two-component regulatory system DevR/DevS (also called DosR/DosS) involved in onset of the dormancy response. Regulates an approximately 48-member regulon. When phosphorylated binds and activates the promoter of DevR regulon genes in response to hypoxia. The presence of target DNA increases stability of phospho-DevR in vitro. Activates its own transcription under hypoxic but not aerobic conditions, probably binds as a dimer to tandem binding sites within the devR and hspX promoters. Accepts [...]
   
 
 0.682
mbtB
Phenyloxazoline synthase MbtB (phenyloxazoline synthetase); Involved in the initial steps of the mycobactin biosynthetic pathway. Putatively couples activated salicylic acid with serine or threonine and cyclizes this precursor to the hydroxyphenyloxazoline ring system present in this class of siderophores. Essential for growth in macrophages; Belongs to the ATP-dependent AMP-binding enzyme family. MbtB subfamily.
  
  
 0.677
hemA
Probable glutamyl-tRNA reductase HemA (GLUTR); Catalyzes the NADPH-dependent reduction of glutamyl-tRNA(Glu) to glutamate 1-semialdehyde (GSA).
   
  
 0.674
hemL
Rv0524, (MTCY25D10.03), len: 462 aa. Probable hemL,glutamate-1-semialdehyde 2,1-aminomutase, equivalent to P46716|GSA_MYCLE glutamate-1-semialdehyde 2,1-aminomutase from Mycobacterium leprae (446 aa), FASTA scores: opt: 1532, E(): 0, (82.6% identity in 460 aa overlap). Also highly similar to others e.g. Q9F2S0|GSA_STRCO from Streptomyces coelicolor (438 aa); Q06774|GSA_PROFR from Propionibacterium freudenreichii (441 aa); etc. Contains PS00600 Aminotransferases class-III pyridoxal-phosphate attachment site. Belongs to class-III of pyridoxal-phosphate-dependent aminotransferases. Cofact [...]
   
  
 0.673
Your Current Organism:
Mycobacterium tuberculosis H37Rv
NCBI taxonomy Id: 83332
Other names: M. tuberculosis H37Rv, Mycobacterium sp. H37Rv, Mycobacterium tuberculosis str. H37Rv, Mycobacterium tuberculosis strain H37Rv
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